Channi Studies

We are going to learn about using the logical operators, AND, OR, and NOT. We can combine more than one conditions with those operators. Let's start from the previously built employees table. I want to add a job column into the table. ALTER TABLE employeesADD COLUMN job VARCHAR(25) AFTER hourly_pay;SELECT * FROM employees; I will assign positions to each employee. UPDATE employeesSET job = "..

Binary Search Tree Inorder TravsersalA tree traversal algorithm visits all nodes in the tree once and performs an operation on each node. An inoreder traversal visits all nodes in a BST from smallest to largest, which is useful for example to print the tree's nodes in sorted order.Starting from the root, the algorithm recursively prints the left subtree, the current node, and the right subtree. ..

SearchGiven a key, a search algorithm returns the first node found matching that key, or returns null if a matching node is not found. A simple BST search algorithm checks the current node (initially the tree's root node), returning that node as a match, else assigning the current node with the left (if key is less) or right (if key is greater) child and repeating. If such a child is null, the a..

Binary Search TreesAn especially useful form of binary tree is a binary serach tree (BST). BST has an ordering property that any node's left subtree keys ≤ the node's key and the right subtree's keys ≥ the node's key. This property enables fast searching for an item. Searching To search nodes means to find a node with a desired key, if such a node exists. A BST may yield faster searches than a..